This was reviewed for stable/kilo in
https://review.openstack.org/244899 and denied b/c upstream Kilo caps
requests <2.8.0 and urllib3<1.11
[BD] Answering myself :-
version of python-urllib3 is 1.13.1 (on F23 ) which is higher then 1.11.X
versions of same lib on CentOS 7.X <=1.10.4
That is a root cause of the trouble.
We actually have urllib3 1.13.1 in cloud7-openstack-common-testing for
EL7 too, so I'll add this patch to RDO Kilo glanceclient package.
Cheers,
Alan